Prime lenses have fixed focal lengths. They are popular because they often have larger apertures than zoom lenses, and sometimes achieve sharper focus. The widest apertures are often f/1.4 or f/1.8, but sometimes as large as f/1.2. They are used for still photography and video alike. Some photographers prefer prime lenses because they believe they produce superior results, and because the large apertures enable the capture of images in lower light and lower ISO settings.Rent a prime camera lens with your next order to photo shoot.